KHIA headerKnow-How in Action

VOL XXVI, NO 76

Belzona® Improves Protection At Base Of Chimneys

 
 

Industry:

Power (POWR)

 
 

Application:

Engines and Casings (ENC)

 
 

Customer Location:

Municipality, Sweden

 
 

Application Date:

September 2011

 
 

Application Situation:

Three Chimneys for furnaces.

 
 

Problem:

The chimneys are made of steel and are resting on a concrete base. Moisture between the chimney and the supporting concrete resulted in corrosion taking place on the chimney as well as a high risk for frost heave in the concrete.

 
 

Products:

Belzona® 3211 (Lagseal)

Belzona® 5811 (Immersion Grade)

 

Substrate:

Steel and concrete

 
 

Application Method:

Application was carried out in accordance with Belzona Know-How System Leaflets GSS-3 and TCC-5. After grit blasting the repair area, the steel was protected with Belzona® 5811 and the Belzona® 3211 reinforced system was applied across the junction between steel and concrete.

 
 

Belzona Facts:

Belzona micro-porous Membrane systems are extenmsively used to provide weather-proofing of tank bases so as to prevent under-tank corrosion, the same arrangement and problems as found on these chimneys. The system prevents water entering whilst allowing any existing moisture to dry out.

 
 

Photographs Description

  1. Chimney Base for the furnace before the repair
  2. Application of Belzona® 3211
  3. Reinforcement sheet incorporated into the Belzona® 3211 coating bridging the steel/concrete junction
  4. The finished application with Belzona® 5811 providing corrosion protection on the steel chimney
 
Case study pic one

 

 
 Case study pic two

 

 
 Case study pic three

 

 
 Case study pic four

 

 
 
For more information about Belzona visit: www.belzona.com